Instability and criteria for decomposition of viscous fuel film in air based on waves on separation surface Topics: DECOMPOSITION, JET ENGINE FUELS, PROPELLANT DECOMPOSITION, STABILITY, VISCOUS FLUIDS, INSTABILITY,...
Introducing of the weight function, which is a function of a correlation matrix determinant, permits to diminish error of spectra decomposition and to depress noise influence. The approach can be consider as an alternative of noise filtration Topics: spectra decomposition, correlation matrix, noise filtration
This technical report presents an algorithm and code to solve for two similarclasses of problems. Given a list of points, find the equations for the best linethat passes a minimum distance from each point. Given a list of lines, findthe point that is a minimum distance from each line. Singular value decompositionis used to solve for the inconsistant matrix. Numerical robustness istested for alternate solutions to the line problem, and the best solution formis returned. This avoids singularities... Topics: Singular Value Decomposition, Best Line Fit
This paper decomposes changes in poverty into growth and redistribution components, and employs several pro-poor growth concepts and indices to explore the growth, poverty and inequality nexus in Indonesia over the period 2002-2012. Authors find a ‘trickle-down’ situation, which the poor have received proportionately less benefits from growth than the non-poor. All pro-poor measures suggest that economic growth in Indonesia was particularly beneficial for those located at the top of the... Topics: Growth, poverty, inequality, pro-poor, decomposition
Presently, info concealment has become a major topic of engineering science attributable to the increasing quality of the web and also the essential want of information security. With relevancy to the final info concealment drawback, an exchange is concerned between strength, visibility and capability. There are several watermarking techniques and models and every of them has some benefits and downsides. Principally utilized in conjunction with unfold spectrum watermarking, sensory activity... Topics: Introduction, Entropy Calculation, Reverse Biorthogonal Decomposition, Results
There are currently five known groups of basaltic achondrites that represent material from distinct differentiated parent bodies. These are the howardite-eucrite-diogenite (HED) clan, mesosiderite silicates, angrites, Ibitira, and Northwest Africa (NWA) 011 . Spectroscopically all these basaltic achondrite groups have absorption bands located near 1 and 2 microns due to the presence of pyroxene. Some of these meteorite types have spectra that are quite similar, but nevertheless have... Topics: DECOMPOSITION, ALGORITHMS, POLYNOMIALS, CONSTRAINTS, GRAPHS (CHARTS)
Flight tests are evaluated of an avionics system which aids the pilot in making two-segment approaches for noise abatement. The implications are discussed of equipping United's fleet of Boeing 727-200 aircraft with two-segment avionics for use down to Category 2 weather operating minima. The experience is reported of incorporating two-segment approach avionics systems on two different aircraft. The cost of installing dual two-segment approach systems is estimated to be 37,015 per aircraft,... Topics: BIOGEOCHEMISTRY, CLAYS, MICROORGANISMS, MINERALS, DECOMPOSITION, ORGANIC MATERIALS
byCavanaugh, John F.; Britt, Jamie L., et al; Smith, James C.; Sun, Xiaoli; Bartels, Arlin E.; Ramos-Izquierdo, Luis; Krebs, Danny J.; Novo-Gradac, Anne marie; McGarry, Jan F.; Trunzo, Raymond
The Mercury Laser Altimeter (MLA) is one of the payload science instruments on the MErcury Surface, Space ENvironment, GEochemistry, and Ranging (MESSENGER) mission, which launched on 3 August 2004. The altimeter will measure the round trip time-of-flight of transmitted laser pulses reflected from the surface of the planet that, in combination with the spacecraft orbit position and pointing data, gives a high-precision measurement of surface topography referenced to Mercury's center of mass.... Topics: PREDICTIONS, PROVING, EQUIPMENT SPECIFICATIONS, DECOMPOSITION, ISOLATION, THREADS
A method and apparatus for deploying the payload of space shuttle craft or the like. The payload rotated about an axis outside of the payload but approximately longitudinally of the cargo bay of the shuttle craft. The payload may thus be rotated, through ninety degrees. In this case, that is in its rotated position, the payload may or may not have a small portion located within the cargo bay. Alternatively, the payload may be located completely outside of the bay. According to the apparatus two... Topics: CARBON, CATALYSTS, DECOMPOSITION, HYDRAZINES, HYDROGEN, PATENTS
It is observed that the stress level is function of various statistical parameters like standard deviation, entropy, energy,, mean,Co- variance and power of the ECG signals of two states i.e. normal state of mind and stressed state of mind. Further, it is observed thatthe features extracted are directly from the ECG in frequency domain using db4 wavelet. However, db4 introduces some error onaccount of db4 wavelet shape. This error in turn amplifies while measuring the features as mentioned... Topics: ECG, Bior 3.9, Wavelet \decomposition, Entropy
In this paper, we propose a method for classification of texture images using neural network. We compared the classification result with minimum distance classifier. Most of the significant information of texture is often present in highfrequency channels. So these high frequency channels are decomposed repeatedly up to fourth level to extract features like mean, energy, entropy and variance. For this 8 samples are used from brodatz album and results show that the percentage classification rate... Topics: Fourth Level Decomposition, Image Classification, Neural Networks
A new watermarking algorithm which is based onimage scrambling and SVD in the wavelet domain is discussedin this paper. In the proposed algorithm, chaotic signals aregenerated using logistic mapping and are used for scramblingthe original watermark. The initial values of logistic mappingare taken as private keys. The covert image is decomposedinto four bands using integer wavelet transform; we applySVD to each band and embed the scrambled watermark databy modifying the singular values. Topics: logistic mapping, singular value decomposition, discrete wavelet transforms
byM. R. R. PRASAD 1, K. SUDHAKARBABU 1, B. SREEDHAR 2, M. AMARNATH REDDY 2 and D. KEERTHI DEVI
The control of combustion processes in composite solid rocket propellants is of prime importance from the point of view of thrust variation. To attain a specific thrust-time pattern required for a particular mission, it necessitates altering or modifying the combustion rates of these composite solid rocket propellant motors. These modifications can be achieved by the addition of small percentage of suitable additives. Present work is focused on the study of thermal behavior of a mixture of... Topics: Ammonium per chlorate, Tehra-n-butyl tetra fluoraborate, decomposition mixture.
Solid propellants are fuels that do not require an external supply of oxygen for combustion. Once ignited, they rapidly decompose to evolve hot gaseous products. Solid propellants are hence used as fuel for propulsion applications in oxygen rare environments. In this study, a simple model for solid propellant decomposition in a combustion chamber with an exit port was presented. The combustion chamber is assumed to be a ʹwell‐mixed reactorʹ. The model equations take... Topics: Solid Propellant, Decomposition, Pressure Build‐up, Choking Flow
Bell System Technical Journal, 33: 4. July 1954 pp 1017-1018. Recent Monographs of Bell System Technical Papers Not Published in this Journal. Topics: monograph, monographs, ama, dislocations, thermochemistry, ambipolar, legendre, bell, sulfur,...
Doing a Partial Fraction Decomposition problem is a great opportunity to practice some of our systems of equations techniques like Gaussian Elimination, Cramer's Rule, and Inverse Matrices. Topics: Gaussian Elimination, Cramer's Rule, Inverse Matrices, Partial Fraction Decomposition
Solid propellants are fuels that do not require an external supply of oxygen for combustion. Once ignited, they rapidly decompose to evolve hot gaseous products. Solid propellants are hence used as fuel for propulsion applications in oxygen rare environments. In this study, a simple model for solid propellant decomposition in a combustion chamber with an exit port was presented. The combustion chamber is assumed to be a ʹwell‐mixed reactorʹ. The model equations take into... Topics: Solid Propellant, Decomposition, Pressure Build‐up, Choking Flow
byBui, Trong T.; Lux, David P.; Stenger, Mike; Munson, Mike; Teate, Georg
A new testbed for hypersonic flight research is proposed. Known as the Phoenix air-launched small missile (ALSM) flight testbed, it was conceived to help address the lack of quick-turnaround and cost-effective hypersonic flight research capabilities. The Phoenix ALSM testbed results from utilization of two unique and very capable flight assets: the United States Navy Phoenix AIM-54 long-range, guided air-to-air missile and the NASA Dryden F-15B testbed airplane. The U.S. Navy retirement of the... Topics: KALMAN FILTERS, DECOMPOSITION, THRUST, TURBOFAN ENGINES, ORTHOGONALITY, ENGINE PARTS, DEGRADATION